CN106530995B - Display substrate, display panel, display device and pixel rendering method - Google Patents
Display substrate, display panel, display device and pixel rendering method Download PDFInfo
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- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
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Abstract
The invention discloses a display substrate, a display panel, a display device and a pixel rendering method. The display substrate comprises a plurality of sub-pixel unit group lines, the width of 1.5 sub-pixel unit groups is staggered between an odd sub-pixel unit group line and an even sub-pixel unit group in the sub-pixel unit group lines, each sub-pixel unit group comprises six triangular sub-pixel units, each triangular sub-pixel unit comprises three triangular sub-pixels, and the colors of the three triangular sub-pixels are different. According to the technical scheme provided by the embodiment of the invention, the pixel structure in the novel display substrate is designed, so that the pixel arrangement mode is suitable for sub-pixel rendering, the phenomena of saw-tooth shape and granular sensation of a displayed image are improved, and the display effect of the display device is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display substrate, a display panel, a display device and a pixel rendering method.
Background
The organic light emitting display device has advantages of self-luminescence, no need of backlight, light weight, low power consumption, and the like, and is popular with users.
The pixel arrangement of the organic light emitting display device in the prior art includes various pixel arrangements, pentile arrangements, and the like. In the conventional pixel arrangement, a plurality of sub-pixels are arranged in a matrix, red sub-pixels, green sub-pixels and blue sub-pixels are sequentially and circularly arranged along the row direction of a sub-pixel matrix, and each sub-pixel column only comprises one color of sub-pixels. The length of the sub-pixels along the matrix row direction in the pixel arrangement is small, and the sub-pixel arrangement is not suitable for sub-pixel rendering. The plurality of sub-pixels in the pentile arrangement are arranged in a matrix, the red sub-pixels, the green sub-pixels and the blue sub-pixels are sequentially and circularly arranged along the row direction of the sub-pixel matrix, the sub-pixel matrix comprises two sub-pixel columns, and the two sub-pixel columns are alternately arranged in the direction of the sub-pixel row. In the first sub-pixel column, blue sub-pixels and red sub-pixels are alternately arranged; in the second sub-pixel column, only the green sub-pixel is included. The lengths of the red sub-pixel, the green sub-pixel and the blue sub-pixel are the same along the column direction of the pixel matrix; the length of the red and blue sub-pixels is greater than the length of the green sub-pixel column along the row direction of the pixel matrix. In such a pentile arrangement, the red and blue sub-pixels become large in size, graininess is likely to occur, and a jaggy phenomenon occurs in a displayed image.
Disclosure of Invention
The invention provides a display substrate, a display panel, a display device and a pixel rendering method, which are used for enabling a pixel arrangement mode to be suitable for sub-pixel rendering and improving the phenomena of saw-tooth shape and granular sensation of a displayed image.
In a first aspect, an embodiment of the present invention provides a display substrate, where the display substrate includes a plurality of rows of sub-pixel unit groups;
each sub-pixel unit group row comprises a plurality of sub-pixel unit groups, and the plurality of sub-pixel unit groups comprise a first sub-pixel unit group, a second sub-pixel unit group and a third sub-pixel unit group which are sequentially and repeatedly arranged;
the odd sub-pixel unit group lines and the even sub-pixel unit group lines in the plurality of sub-pixel unit group lines are staggered by 1.5 sub-pixel unit groups, and the same sub-pixel unit groups in two adjacent odd sub-pixel unit group lines or two adjacent even sub-pixel unit group lines are opposite to each other;
each sub-pixel unit group comprises six triangular sub-pixel units which are closely arranged into a hexagon by a common vertex;
each triangular sub-pixel unit comprises three triangular sub-pixels, and the colors of the three triangular sub-pixels are different;
the colors of the triangular sub-pixels which take the common vertex as the vertex at the corresponding positions in the first sub-pixel unit group, the second sub-pixel unit group and the third sub-pixel unit group are different;
the two triangular sub-pixels with adjacent edges and different colors form a pixel, and the pixel is at least arranged adjacent to the edge of one triangular sub-pixel with a third color;
all the triangular sub-pixels are arranged in a close full symmetry mode.
In a second aspect, an embodiment of the present invention further provides a display panel, where the display panel includes the display substrate according to the first aspect.
In a third aspect, an embodiment of the present invention further provides a display device, where the display device includes the display panel described in the second aspect.
In a fourth aspect, an embodiment of the present invention further provides a pixel rendering method applied to the display device in the third aspect, where the pixel rendering method includes:
step 1, determining at least one same-color data sub-pixel in an image to be displayed corresponding to each triangular sub-pixel in a display screen in the following mode:
acquiring at least one virtual pixel corresponding to a first sub-pixel in a display screen, wherein the virtual pixel displays image information of a data pixel in the image to be displayed, the virtual pixel comprises the first sub-pixel, a second sub-pixel forming a pixel with the first sub-pixel, and a third sub-pixel arranged adjacent to the first sub-pixel and/or the second sub-pixel, the colors of the first sub-pixel, the second sub-pixel and the third sub-pixel are different from each other, at least two triangular sub-pixels in the first sub-pixel, the second sub-pixel and the third sub-pixel belong to one triangular sub-pixel unit, and the triangular sub-pixel units and other five triangular sub-pixel units are closely arranged to form a hexagonal sub-pixel unit group by using a common vertex;
acquiring at least one data pixel in the image to be displayed corresponding to the at least one virtual pixel;
determining that a data sub-pixel with the same color as the first sub-pixel in at least one data pixel in the image to be displayed is at least one same-color data sub-pixel in the image to be displayed corresponding to the first sub-pixel;
acquiring at least one same-color data sub-pixel in the image to be displayed corresponding to other triangular sub-pixels except the first sub-pixel in the display screen in the same way;
step 2, obtaining a gray-scale value of at least one same-color data sub-pixel in the image to be displayed;
and 3, taking the sum of the product of the gray-scale value of at least one homochromatic data sub-pixel in the image to be displayed and the corresponding coefficient as the gray-scale value of the corresponding triangular sub-pixel in the display screen.
The display substrate provided by the embodiment of the invention comprises a plurality of sub-pixel unit group lines, wherein the width of 1.5 sub-pixel unit groups is staggered between an odd sub-pixel unit group line and an even sub-pixel unit group in the same sub-pixel unit group line in the plurality of sub-pixel unit group lines, each sub-pixel unit group comprises six triangular sub-pixel units, each triangular sub-pixel unit comprises three triangular sub-pixels, and the colors of the three triangular sub-pixels are different.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, a brief description is given below of the drawings used in describing the embodiments. It should be clear that the described figures are only views of some of the embodiments of the invention to be described, not all, and that for a person skilled in the art, other figures can be derived from these figures without inventive effort.
Fig. 1 is a schematic structural diagram of a display substrate according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another display substrate according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another display substrate according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another display substrate according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present invention;
FIG. 8 is a flowchart illustrating a pixel rendering method according to an embodiment of the present invention;
FIG. 9 is a block diagram of a pixel of data in an image to be displayed according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a pixel in a display panel according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be fully described by the detailed description with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, not all embodiments, and all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without inventive efforts fall within the scope of the present invention.
Fig. 1 is a schematic structural diagram of a display substrate according to an embodiment of the present invention. As shown in fig. 1, each of the subpixel unit group rows includes a plurality of subpixel unit groups 10, and the plurality of subpixel unit groups 10 includes a first subpixel unit group 100, a second subpixel unit group 200, and a third subpixel unit group 300, which are repeatedly arranged in sequence. The odd-numbered sub-pixel unit group lines and the even-numbered sub-pixel unit group lines in the plurality of sub-pixel unit group lines are staggered by 1.5 sub-pixel unit groups 10, and the same sub-pixel unit groups 10 in two adjacent odd-numbered sub-pixel unit group lines or two adjacent even-numbered sub-pixel unit group lines are opposite to each other. Each of the sub-pixel cell groups 10 includes six triangular sub-pixel cells 110, and the six triangular sub-pixel cells 100 are closely arranged in a hexagon with a common vertex. Each of the triangular sub-pixel units 110 includes three triangular sub-pixels, and the colors of the three triangular sub-pixels are different from each other. The colors of the triangular sub-pixels at the corresponding positions of the first sub-pixel unit group 100, the second sub-pixel unit group 200 and the third sub-pixel unit group 300, which use the common vertex as the vertex, are different from each other. The two triangular sub-pixels with adjacent edges and different colors form a pixel, the pixel is at least arranged adjacent to the edge of one triangular sub-pixel with a third color, and all the triangular sub-pixels are arranged in a close full-symmetry manner.
It should be noted that, in the triangle sub-pixels of the first sub-pixel group 100, which have a vertex common to the sub-pixel units 110 as a vertex, in the second sub-pixel group 200, which have a vertex common to the sub-pixel units 110 as a vertex, and in the triangle sub-pixels of the third sub-pixel group 300, which have a vertex common to the sub-pixel units 110 as a vertex, the triangle sub-pixels located at the same position of the first sub-pixel group 100, the second sub-pixel group 200, and the third sub-pixel group 300 are the triangle sub-pixels of the corresponding position of the first sub-pixel group 100, the second sub-pixel group 200, and the third sub-pixel group 300, which have a vertex common to the vertex.
Illustratively, as shown in fig. 1, in the top-down direction, the first sub-pixel cell group row and the third sub-pixel cell group row are odd sub-pixel cell group rows, and the second sub-pixel cell group row and the fourth sub-pixel cell group row are even sub-pixel cell group rows. It should be noted that each odd sub-pixel unit group row may be obtained by shifting adjacent even sub-pixel unit group rows by 1.5 sub-pixel unit group 10 widths in the extending direction X of the sub-pixel unit group row, so that the same sub-pixel group 10 in the adjacent odd sub-pixel unit group row or the adjacent even sub-pixel unit group row in the obtained pixel structure is opposite to each other, as the second sub-pixel group 200 and the fourth sub-pixel group 400 are opposite to each other in fig. 1.
With continued reference to fig. 1, two triangle sub-pixels forming a pixel may belong to the same sub-pixel unit 110, for example, in fig. 1, the fourth sub-pixel 111 and the fifth sub-pixel 112 belong to the same sub-pixel unit 110, the fourth sub-pixel 111 and the fifth sub-pixel 112 are triangle sub-pixels with adjacent edges and different colors, and may form a pixel, and similarly, the fourth sub-pixel 111 may form a pixel with the sixth sub-pixel 113, and the fifth sub-pixel 112 may form a pixel with the sixth sub-pixel 113. The two triangular sub-pixels forming the pixel may also belong to different sub-pixel units 110, for example, in fig. 1, the fourth sub-pixel 111 and the seventh sub-pixel 114 belong to different sub-pixel units, and the fourth sub-pixel 111 and the seventh sub-pixel 114 are triangular sub-pixels with adjacent edges and different colors, and may also constitute a pixel. It is understood that for the latter case, two different sub-pixel units 110 may belong to the same sub-pixel unit group 10, or may belong to different sub-pixel unit groups 10. The relevant practitioner selects the specific configuration of the pixels according to actual needs.
It should be noted that each pixel may form a virtual pixel with any of the triangular sub-pixels which are disposed adjacent to the pixel and have the third color. Each virtual pixel is used for displaying image information of one data pixel in the image to be displayed, specifically, the virtual pixel and the data pixel in the image to be displayed respectively comprise three sub-pixels with different colors, and the colors of the three triangular sub-pixels in the virtual pixel are respectively the same as the colors of the three data sub-pixels of the data pixel in the image to be displayed. For example, a data pixel in an image to be displayed includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and a virtual pixel for displaying image information of the data pixel also includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, then the red sub-pixel in the virtual pixel is used for displaying image information of the red sub-pixel of the corresponding data pixel in the image to be displayed, the green sub-pixel in the virtual pixel is used for displaying image information of the green sub-pixel of the corresponding data pixel in the image to be displayed, and the blue sub-pixel in the virtual pixel is used for displaying image information of the blue sub-pixel of the corresponding data pixel in the image to be displayed.
It should be further noted that there is an overlap between the virtual pixels, for example, if the fourth sub-pixel 111, the fifth sub-pixel 112, and the sixth sub-pixel 113 in fig. 1 are arranged to form a first virtual pixel, and the fourth sub-pixel 111, the fifth sub-pixel 112, and the seventh sub-pixel 114 form a second virtual pixel, the fourth sub-pixel 111 and the fifth sub-pixel 112 are the overlapping portion of the first virtual pixel and the second virtual pixel. And all data pixels in the image to be displayed are not overlapped, so that the beneficial effect that the display screen with low resolution displays high-resolution pictures can be realized. Illustratively, four subpixels, namely, a fourth subpixel 111, a fifth subpixel 112, a sixth subpixel 113 and a seventh subpixel 114 in fig. 1, can display image information of six subpixels in an image to be displayed. Further, the triangle sub-pixels belonging to the overlapped portion of the plurality of virtual pixels need to display the image information of more than one same-color data sub-pixels in the image to be displayed, and therefore, the gray scale values of the triangle sub-pixels are the integrated values of the gray scale values of the corresponding more than one same-color data sub-pixels.
In this embodiment, the close-packed fully-symmetrical arrangement is shown in fig. 1, which refers to the arrangement of each triangular sub-pixel, and the interval between any two adjacent triangular sub-pixels at the edge is the same.
The display substrate that this embodiment provided includes a plurality of sub-pixel unit group rows, the width that misplaces 1.5 sub-pixel unit groups 10 between the same sub-pixel unit group 10 in odd number sub-pixel unit group row and even number sub-pixel unit group row is arranged in a plurality of sub-pixel unit group rows 10, every sub-pixel unit group 10 includes six triangle-shaped sub-pixel unit 110, every triangle-shaped sub-pixel unit 110 includes three triangle-shaped sub-pixel, three triangle-shaped sub-pixel's colour diverse, through designing the pixel structure in the above-mentioned novel display substrate, it is suitable for the sub-pixel to render to have reached to make the pixel arrangement mode, improve display image cockscomb structure and graininess phenomenon, promote the beneficial effect of display device display effect.
Optionally, the three triangular sub-pixels included in each sub-pixel unit 110 may be any one of red, green and blue. For example, the fourth subpixel 111 in the subpixel unit 110 of fig. 1 may be red, the fifth subpixel 112 and the sixth subpixel 113 may be green and blue, respectively, or the fifth subpixel 112 and the sixth subpixel 113 may be blue and green, respectively; the fourth sub-pixel 111 may also be green, the fifth sub-pixel 112 and the sixth sub-pixel 113 may be red and blue, respectively, or the fifth sub-pixel 112 and the sixth sub-pixel 113 may be blue and red, respectively; the fourth subpixel 111 may also be blue, the fifth subpixel 112 and the sixth subpixel 113 may be red and green, respectively, or the fifth subpixel 112 and the sixth subpixel 113 may be green and red, respectively.
Illustratively, referring to fig. 1, two of the triangular sub-pixels adjacent to any edge may be set to have different colors. By the arrangement, the triangular sub-pixels of all colors can be uniformly distributed on the display screen, the pixel structure is cleaner and tidier, and the objective display effect of the display screen is better. It should be noted that, in another embodiment of the present invention, the colors of the triangular sub-pixels adjacently disposed on a part of the edges may also be the same. For example, the sensitivity of human eyes to blue is low, and the colors of two adjacent triangle sub-pixels at the edge can be set to be blue, so that the size of the local blue sub-pixel is increased, and the display effect subjectively felt by a user is improved. It will be appreciated that each sub-pixel unit 110 comprises three triangular sub-pixels of different colors, and therefore the number of triangular sub-pixels of the same color and adjacent edges can only be two.
Referring to fig. 1, each of the sub-pixel cell groups 10 may include six regular-triangle sub-pixel cells 110. The shape of the sub-pixel cell group 10 obtained in this case is a regular hexagon. Such an arrangement provides the basis for the way in which the adjacent group of sub-pixel cells 10 is obtained by means of rotation. In other embodiments of the present invention, each sub-pixel cell group 10 may also include six non-regular-triangular sub-pixel cells 110, see fig. 2 and 3.
Alternatively, with continued reference to fig. 1, each of the sub-pixel units 110 may include three triangular sub-pixels having the same shape and size. Such an arrangement further enhances the uniformity of the distribution of the triangular sub-pixels of each color across the display screen. It is understood that in other embodiments of the present invention, the three triangular sub-pixels in each sub-pixel unit 110 may be different in shape and size or partially different based on the sensitivity of human eyes to different colors.
Further, as shown in fig. 1, when each sub-pixel unit group 10 includes six regular triangle sub-pixel units 110, and each sub-pixel unit 110 includes three triangle sub-pixels having the same shape and size, in the clockwise direction, the next sub-pixel unit 110 in each sub-pixel unit group 10 is obtained by rotating the previous sub-pixel unit 110 by 60 ° counterclockwise around the common vertex of the next sub-pixel unit 110 and the previous sub-pixel unit 110 as the rotation center, and the common vertex is located at the vertex of the hexagon. It should be noted that, in the clockwise direction, the next sub-pixel unit 110 in each sub-pixel unit group 10 is composed of two previous sub-pixel units 110, one is located at the geometric center of the hexagonal sub-pixel unit group 10, and the other is located at the vertex position of the hexagonal sub-pixel unit group 10, where the rotation operation is performed with the latter vertex as the rotation center, where the common vertex of the next sub-pixel unit 110 and the previous sub-pixel unit 110 is the common vertex of the two previous sub-pixel units 110. Due to the arrangement, a designer can conveniently obtain the whole pixel structure by only specifically designing the structure of one sub-pixel unit 110, and the design and preparation process of the display screen are simplified.
Fig. 4 is a schematic structural diagram of another display substrate according to an embodiment of the invention. It should be noted that the structure of the display substrate in fig. 4 is similar to the structure of the display substrate in fig. 1, except that, in the clockwise direction, the next sub-pixel unit 110 in each sub-pixel unit group 10 is obtained by rotating the previous sub-pixel unit 110 clockwise by 60 ° with the common vertex of the sub-pixel units 110 in the sub-pixel unit group 10 as the rotation center. The structure can also achieve the beneficial effect of simplifying the design and the preparation process of the display screen.
With continued reference to fig. 4, the number of groups of sub-pixel cells 10 in each of the rows of sub-pixel cell groups may be the same. The pixel structure obtained by the arrangement is more orderly, and the shape is more square. It is understood that the number of sub-pixel unit groups 10 in a sub-pixel unit group row is changed according to the shape of the display screen, and therefore, in other embodiments of the present invention, the number of sub-pixel unit groups 10 in each sub-pixel unit group row may be different or partially different.
Fig. 5 is a schematic structural diagram of a display panel according to an embodiment of the present invention. As shown in fig. 5, the display panel includes a display substrate 21 according to any embodiment of the present invention.
It should be noted that the display substrate 21 included in the display panel in the present embodiment may be an organic light emitting display substrate. In addition to the display substrate, the display panel further includes an encapsulation structure 22.
Fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention. As shown in fig. 6, the display panel includes a display substrate 21 according to any embodiment of the present invention.
It should be noted that the display substrate 21 in this embodiment may be a color filter substrate. Accordingly, the display panel may be a liquid crystal display panel or an organic light emitting display panel. In contrast, the first substrate 23 disposed opposite to the display substrate 21 in the liquid crystal display panel is an array substrate, and a liquid crystal layer is disposed between the display substrate 21 and the array substrate; the first substrate 23 disposed opposite to the display substrate 21 in the organic light emitting display panel is an organic light emitting display substrate.
Fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present invention. As shown in fig. 7, the display device 30 includes the display panel 20 according to any embodiment of the present invention.
Fig. 8 is a flowchart illustrating a pixel rendering method according to an embodiment of the present invention. The pixel rendering method is applied to the display device according to any embodiment of the invention.
The pixel rendering method in this embodiment is implemented by displaying image information in an image to be displayed in a display screen. It can be understood that, if the number of the data sub-pixels in the image to be displayed is the same as the number of the triangle sub-pixels in the display screen, and the color of the data sub-pixels at the corresponding positions is the same as the color of the triangle sub-pixels in the display screen, the gray-scale value of each data sub-pixel in the image to be displayed is directly used as the gray-scale value of the triangle sub-pixel at the corresponding position in the display screen. However, in the case that the number of the triangular sub-pixels in the display screen is smaller than the number of the data sub-pixels in the image to be displayed, the image information of the image to be displayed cannot be completely displayed on the display screen in the above manner. The pixel rendering method provided by the embodiment can effectively solve the problems.
Referring to fig. 8, the pixel rendering method provided in this embodiment may specifically include the following steps:
s11, determining at least one same-color data sub-pixel in the image to be displayed corresponding to each triangle sub-pixel in the display screen.
The image to be displayed refers to an image directly obtained from input image data, and the image is composed of a plurality of data pixels, each of which includes three data sub-pixels of different colors. Illustratively, the data subpixels in the image to be displayed are generally rectangular, and all of the data subpixels are arranged in a matrix.
The same color data sub-pixel of a triangle sub-pixel refers to a data sub-pixel having the same color as the triangle sub-pixel.
Specifically, at least one same-color data subpixel in the image to be displayed corresponding to each triangle subpixel in the display screen may be determined as follows: acquiring at least one virtual pixel corresponding to a first sub-pixel in a display screen, wherein the virtual pixel displays image information of a data pixel in the image to be displayed, the virtual pixel comprises the first sub-pixel, a second sub-pixel forming a pixel with the first sub-pixel, and a third sub-pixel arranged adjacent to the first sub-pixel and/or the second sub-pixel, the colors of the first sub-pixel, the second sub-pixel and the third sub-pixel are different from each other, at least two triangular sub-pixels in the first sub-pixel, the second sub-pixel and the third sub-pixel belong to one triangular sub-pixel unit, and the triangular sub-pixel units and other five triangular sub-pixel units are closely arranged to form a hexagonal sub-pixel unit group by using a common vertex; acquiring at least one data pixel in the image to be displayed corresponding to the at least one virtual pixel; determining that a data sub-pixel with the same color as the first sub-pixel in at least one data pixel in the image to be displayed is at least one same-color data sub-pixel in the image to be displayed corresponding to the first sub-pixel; and acquiring at least one same-color data sub-pixel in the image to be displayed corresponding to other triangular sub-pixels except the first sub-pixel in the display screen in the same way.
And S12, acquiring the gray-scale value of at least one same-color data sub-pixel in the image to be displayed.
And S13, taking the sum of the products of the gray-scale value of at least one homochromatic data sub-pixel in the image to be displayed and the corresponding coefficient as the gray-scale value of the corresponding triangular sub-pixel in the display screen.
The above process is further illustrated by the following specific examples. Note that this embodiment exemplifies a case where pixels are formed as follows: in each sub-pixel unit, two edge adjacent sub-pixels which take the common vertex of each sub-pixel unit in the sub-pixel unit group to which the sub-pixel unit belongs as a vertex form a pixel. For other constituent modes of the pixels, the rendering principle of the pixels is the same as that in the present embodiment, and thus the description is omitted.
For example, fig. 9 is a schematic structural diagram of a data pixel in an image to be displayed according to an embodiment of the present invention. Fig. 10 is a schematic structural diagram of a pixel in a display panel according to an embodiment of the present invention. It should be noted that, here, only the case where the display panel includes one sub-pixel unit group is taken as an example for description, and the pixel structure in the display panel is not limited, and in the case where a plurality of sub-pixel unit groups are included, the rendering manner of each sub-pixel unit group is the same as the rendering manner of one sub-pixel unit group provided in this embodiment. It will be appreciated that the purpose of pixel rendering is to display image information in the image to be displayed in the display screen.
For example, referring to the above description of the pixel structure of the display substrate in the display device, in the display panel shown in fig. 10 of the present embodiment, the sub-pixel a and the sub-pixel B form a pixel, the sub-pixel C and the sub-pixel D form a pixel, the sub-pixel E and the sub-pixel F form a pixel, the sub-pixel G and the sub-pixel H form a pixel, the sub-pixel I and the sub-pixel J form a pixel, and the sub-pixel K and the sub-pixel L form a pixel. In order to ensure that the final display image of the display screen is the same as the image to be displayed, the data pixel information of a specific position in the image to be displayed corresponds to the pixel information of the same position in the display screen.
The following specifically describes a pixel including a sub-pixel a and a sub-pixel B as an example. In fig. 10, the sub-pixel a and the sub-pixel B form a pixel, and the sub-pixel a, the sub-pixel B and the sub-pixel M form a twelfth virtual pixel 50/12 for displaying image information in a twelfth data pixel 40/12 formed by the data sub-pixel a ", the data sub-pixel B' and the data sub-pixel M in the image to be displayed shown in fig. 9. On the other hand, the sub-pixel a, the sub-pixel B, and the sub-pixel C in fig. 10 may also constitute a first virtual sub-pixel 50/1 for displaying image information of a first data pixel 40/1 composed of a data sub-pixel a, a data sub-pixel B, and a data sub-pixel C in the image to be displayed shown in fig. 9.
It should be noted that the sub-pixel a, the sub-pixel B, and the sub-pixel L in the display screen may also form a virtual pixel 50, in which case the pixel formed by the sub-pixel a and the sub-pixel B may correspond to three virtual pixels 50, but the sub-pixel a and the sub-pixel B may respectively correspond to image information of three data sub-pixels in an image to be displayed, and the signal calculation difficulty may be increased. Therefore, when the resolution of the display screen pixel is relatively large enough to display the complete image information to be displayed under the condition that each triangle sub-pixel corresponds to two data sub-pixels, the sub-pixel a, the sub-pixel B and the sub-pixel L are not used to form the virtual pixel 50.
According to the rule that the sub-pixel A and the sub-pixel B form the virtual pixel 50: each pixel and the triangular sub-pixel belonging to the same sub-pixel unit form a virtual pixel 50, and form another virtual pixel 50 with the next triangular sub-pixel in the clockwise direction, and 12 virtual pixels 50 are obtained based on the pixel structure shown in fig. 10, and are respectively used for displaying the image information of the data pixel 40 at the corresponding position in the image to be displayed shown in fig. 9. Specifically, a first virtual pixel 50/1, consisting of subpixel a, subpixel B, and subpixel C, for displaying image information of a first data pixel 40/1, consisting of data subpixel a, data subpixel B, and data subpixel C; a second virtual pixel 50/2 composed of subpixel C, subpixel D, and subpixel N for displaying image information of a second data pixel 40/2 composed of data subpixel C', data subpixel D, and data subpixel N; a third virtual pixel 50/3 composed of sub-pixel C, sub-pixel D, and sub-pixel E for displaying image information of a third data pixel 40/3 composed of data sub-pixel C ″, data sub-pixel D', and data sub-pixel E; a fourth virtual pixel 50/4, consisting of subpixel E, subpixel F, and subpixel O, for displaying image information of a fourth data pixel 40/4, consisting of data subpixel E', data subpixel F, and data subpixel O; a fifth virtual pixel 50/5 composed of subpixel E, subpixel F, and subpixel G for displaying image information for a five-data pixel 40/5 composed of data subpixel E ", data subpixel F', and data subpixel G; a sixth virtual pixel 50/6 composed of subpixel G, subpixel H, and subpixel P for displaying image information of a sixth data pixel 40/6 composed of data subpixel G', data subpixel H, and data subpixel P; a seventh virtual pixel 50/7 comprising sub-pixel G, sub-pixel H, and sub-pixel I for displaying image information of a seventh data pixel 40/7 comprising data sub-pixel G ' ', data sub-pixel H ', and data sub-pixel I; an eighth virtual pixel 50/8 comprising subpixel I, subpixel J, and subpixel Q for displaying image information of an eighth data pixel 40/8 comprising data subpixel I', data subpixel J, and data subpixel Q; a ninth virtual pixel 50/9 comprising sub-pixel G, sub-pixel H, and sub-pixel K for displaying image information of a ninth data pixel 40/9 comprising data sub-pixel i ″, data sub-pixel j', and data sub-pixel K; a tenth virtual pixel 50/10 composed of subpixel K, subpixel L, and subpixel R for displaying image information of a tenth data pixel 40/10 composed of data subpixel K', data subpixel L, and data subpixel R; an eleventh virtual pixel 50/11 comprising subpixel K, subpixel L, and subpixel a for displaying image information of an eleventh data pixel 40/11 comprising data subpixel K ", data subpixel L ', and data subpixel a'; the twelfth virtual pixel 50/12, which is composed of the sub-pixel a, the sub-pixel B, and the sub-pixel M, is used to display the image information of the twelfth data pixel 40/12, which is composed of the data sub-pixel a ", the data sub-pixel B', and the data sub-pixel M.
In the data pixel 40 and the dummy pixel 50 having the correspondence relationship, the same color sub-pixels correspond to each other. For example, the first virtual pixel 50/1 composed of the sub-pixel a, the sub-pixel B, and the sub-pixel C in fig. 10 is used to display the image information of the first data pixel 40/1 composed of the data sub-pixel a, the data sub-pixel B, and the data sub-pixel C in fig. 9, the first virtual pixel 50/1 composed of the sub-pixel a, the sub-pixel B, and the sub-pixel C has a corresponding relationship with the first data pixel 40/1 composed of the data sub-pixel a, the data sub-pixel B, and the data sub-pixel C, if the sub-pixel a and the data sub-pixel a are the same color, the sub-pixel a in the display screen corresponds to the data sub-pixel a in the image to be displayed, and the sub-pixel a is used to display the image information of the data sub-pixel a.
It is found through analysis that the sub-pixel a in the display panel in fig. 10 corresponds to the data sub-pixel a, the data sub-pixel a 'and the data sub-pixel a ″ in the image to be displayed in fig. 9, that is, the image information of the data sub-pixel a, the data sub-pixel a' and the data sub-pixel a ″ needs to be displayed by the sub-pixel a at the same time. Specifically, the sum of products of gray-scale values and corresponding coefficients of three data sub-pixels, namely, the data sub-pixel a ', and the data sub-pixel a ″ may be used as the gray-scale value of the sub-pixel a, for example, if the gray-scale values of the data sub-pixel a, the data sub-pixel a ', and the data sub-pixel a ″ are X, Y, and Z, respectively, and the corresponding coefficients of the data sub-pixel a, the data sub-pixel a ', and the data sub-pixel a ″ are X, Y, and Z, respectively, then the gray-scale value of the sub-pixel a is xX + yY + zZ. After the gray scale value of the sub-pixel a is determined, the gray scale value is added to the driving signal, and the driving signal is transmitted to the sub-pixel a on the display screen to drive the sub-pixel a to display. The above-mentioned operation manner of the gray-scale values of the data sub-pixels enables the gray-scale values of the sub-pixels a to be obtained based on the gray-scale values of the data sub-pixels a, a 'and a ″, so that when the sub-pixels a are displayed under the action of the driving signal, the image information of the data sub-pixels a, a' and a ″, can be displayed simultaneously.
According to the above manner for determining the gray scale value of the subpixel a, the gray scale values of the other triangular subpixels in the display screen shown in fig. 10 except for the subpixel a can be obtained, and then each gray scale value is added to the driving signal and transmitted to the corresponding triangular subpixel, so as to realize the display of the image to be displayed by the display screen.
Based on the above description of the pixel rendering principle in this embodiment, when determining the gray scale value of each triangle sub-pixel in the display screen, at least one same-color data sub-pixel in the image to be displayed corresponding to each triangle sub-pixel is determined first. For example, for the sub-pixel a shown in fig. 10, at least one same-color data sub-pixel in the image to be displayed corresponding to the sub-pixel a is the data sub-pixel a, the data sub-pixel a' and the data sub-pixel a ″. And then, acquiring the gray-scale value of the at least one same-color data sub-pixel, specifically, directly acquiring the gray-scale value from the input data image. The sum of the products of the gray-scale values of the at least one same-color data subpixel and the corresponding coefficients is then used as the gray-scale value of the corresponding triangle subpixel in the display, e.g., xX + yY + zZ is used as the gray-scale value of subpixel A in FIG. 10. It should be noted that the value range of each corresponding coefficient is greater than 0 and less than 1, and the sum of each corresponding coefficient of the gray scale value of at least one same-color data subpixel corresponding to the same triangular subpixel in the display screen is 1.
Further, when determining at least one same-color data subpixel in the image to be displayed corresponding to each triangle subpixel in the display screen, since the virtual pixel 50 and the data pixel 40 in the image to be displayed have a direct correspondence relationship, the virtual pixel 50 including each triangle subpixel may be obtained first, and for example, for the subpixel a in fig. 10, the virtual pixel 50 including the subpixel a is: a first virtual pixel 50/1 composed of sub-pixel a, sub-pixel B, and sub-pixel C, an eleventh virtual pixel 50/11 composed of sub-pixel K, sub-pixel L, and sub-pixel a, and a twelfth virtual pixel 50/12 composed of sub-pixel a, sub-pixel B, and sub-pixel M. Then, according to the corresponding relationship between the virtual pixel 50 and the data pixel 40 in the image to be displayed, the data pixel 40 corresponding to the virtual pixel 50 is determined, for example, for the three virtual pixels 50 including the sub-pixel a obtained in the previous step example, the data pixels 40 corresponding to the three virtual pixels 50 are: a first data pixel 40/1 composed of data subpixel a, data subpixel b, and data subpixel c, an eleventh data pixel 40/11 composed of data subpixel k ", data subpixel l ', and data subpixel a ', and a twelfth data pixel 40/12 composed of data subpixel a", data subpixel b ', and data subpixel m. It is finally determined that the data sub-pixel of the obtained data pixel 40 having the same color as the corresponding triangle sub-pixel is the same color data sub-pixel thereof, for example, the data sub-pixel a 'and the data sub-pixel a ″ having the same color as the sub-pixel a in the three data pixels 40 obtained in the previous step example are the same color data sub-pixel of the sub-pixel a, and the data sub-pixel a, the data sub-pixel a' and the data sub-pixel a ″ are the same color data sub-pixel of the sub-pixel a.
It should be noted that the structure of the pixel in the display screen shown in fig. 10 is: in the clockwise direction, the next sub-pixel unit in each sub-pixel unit group is obtained by rotating the previous sub-pixel unit by 60 degrees in the counterclockwise direction by taking the common vertex of the next sub-pixel unit and the previous sub-pixel unit as a rotation center, and the common vertex is located at the vertex of the hexagon. For another display screen pixel structure: in the clockwise direction, the next sub-pixel unit in each sub-pixel unit group is obtained by clockwise rotating the previous sub-pixel unit by 60 degrees with the common vertex as the rotation center. It should be further noted that, in other embodiments of the present invention, the display panel may also include other pixel structures besides the two pixel structures described above in the display substrate according to any embodiment of the present invention, and as long as at least some pixels in the display panel are respectively disposed adjacent to the edge of at least one triangular sub-pixel having the third color, the pixel rendering method provided by the present invention may be used, where the pixels include two triangular sub-pixels having different colors. The pixel configuration is not limited to the configuration shown in fig. 10, and the pixel rendering method in the present embodiment is also applicable to pixel configurations corresponding to other pixel configurations.
According to the technical scheme provided by the embodiment, the gray scale value of at least one same-color data sub-pixel in the image to be displayed corresponding to each triangular sub-pixel in the display screen is obtained by determining the at least one same-color data sub-pixel in the image to be displayed, and the sum of the product of the gray scale value of at least one same-color data sub-pixel in the image to be displayed and the corresponding coefficient is used as the gray scale value of the corresponding triangular sub-pixel in the display screen, so that the beneficial effect of displaying the high-resolution image to be displayed by the low-resolution display screen is realized.
The foregoing is considered as illustrative of the preferred embodiments of the invention and technical principles employed. The present invention is not limited to the specific embodiments herein, and it will be apparent to those skilled in the art that various changes, rearrangements, and substitutions can be made without departing from the scope of the invention. Therefore, although the present invention has been described in more detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the claims.
Claims (13)
1. A display substrate comprises a plurality of sub-pixel unit group rows;
each sub-pixel unit group row comprises a plurality of sub-pixel unit groups, and the plurality of sub-pixel unit groups comprise a first sub-pixel unit group, a second sub-pixel unit group and a third sub-pixel unit group which are sequentially and repeatedly arranged;
the odd sub-pixel unit group lines and the even sub-pixel unit group lines in the plurality of sub-pixel unit group lines are staggered by 1.5 sub-pixel unit groups, and the same sub-pixel unit groups in two adjacent odd sub-pixel unit group lines or two adjacent even sub-pixel unit group lines are opposite to each other;
each sub-pixel unit group comprises six triangular sub-pixel units which are closely arranged into a hexagon by a common vertex;
each triangular sub-pixel unit comprises three triangular sub-pixels, and the colors of the three triangular sub-pixels are different;
the colors of the triangular sub-pixels which take the common vertex as the vertex at the corresponding positions in the first sub-pixel unit group, the second sub-pixel unit group and the third sub-pixel unit group are different;
the two triangular sub-pixels with adjacent edges and different colors form a pixel, and the pixel is at least arranged adjacent to the edge of one triangular sub-pixel with a third color;
all the triangular sub-pixels are arranged in a close full symmetry manner;
each pixel and any triangular sub-pixel which is arranged adjacent to the pixel and has a third color form a virtual pixel, and each virtual pixel is used for displaying image information of one data pixel in an image to be displayed.
2. The display substrate of claim 1, wherein the two triangular sub-pixels adjacent to any edge have different colors.
3. The display substrate according to claim 1, wherein each of the sub-pixel cell groups comprises six regular triangle sub-pixel cells.
4. The display substrate of claim 3, wherein each of the sub-pixel units comprises three triangular sub-pixels having the same shape and size.
5. The display substrate according to claim 4, wherein in a clockwise direction, the next sub-pixel unit in each sub-pixel unit group is obtained by rotating an upper sub-pixel unit by 60 ° counterclockwise around a common vertex of the next sub-pixel unit and the upper sub-pixel unit as a rotation center, the common vertex being located at a vertex of the hexagon.
6. The display substrate of claim 4, wherein in a clockwise direction, the next sub-pixel unit in each sub-pixel unit group is obtained by rotating the previous sub-pixel unit by 60 ° clockwise around the common vertex as a rotation center.
7. The display substrate of claim 1, wherein the number of groups of sub-pixel units in each of the rows of sub-pixel units is the same.
8. The display substrate of claim 1, wherein each of the three triangular sub-pixels of each of the sub-pixel units is one of red, green and blue.
9. A display panel comprising the display substrate according to any one of claims 1 to 8.
10. The display panel according to claim 9, wherein the display panel is an organic light emitting display panel.
11. The display panel according to claim 9, wherein the display panel is a liquid crystal display panel.
12. A display device comprising the display panel according to any one of claims 9 to 11.
13. A pixel rendering method applied to the display device according to claim 12, comprising:
step 1, determining at least one same-color data sub-pixel in an image to be displayed corresponding to each triangular sub-pixel in a display screen in the following mode:
acquiring at least one virtual pixel corresponding to a first sub-pixel in a display screen, wherein the virtual pixel displays image information of a data pixel in the image to be displayed, the virtual pixel comprises the first sub-pixel, a second sub-pixel forming a pixel with the first sub-pixel, and a third sub-pixel arranged adjacent to the first sub-pixel and/or the second sub-pixel, the colors of the first sub-pixel, the second sub-pixel and the third sub-pixel are different from each other, at least two triangular sub-pixels in the first sub-pixel, the second sub-pixel and the third sub-pixel belong to one triangular sub-pixel unit, and the triangular sub-pixel units and other five triangular sub-pixel units are closely arranged to form a hexagonal sub-pixel unit group by using a common vertex;
acquiring at least one data pixel in the image to be displayed corresponding to the at least one virtual pixel;
determining that a data sub-pixel with the same color as the first sub-pixel in at least one data pixel in the image to be displayed is at least one same-color data sub-pixel in the image to be displayed corresponding to the first sub-pixel;
acquiring at least one same-color data sub-pixel in the image to be displayed corresponding to other triangular sub-pixels except the first sub-pixel in the display screen in the same way;
step 2, obtaining a gray-scale value of at least one same-color data sub-pixel in the image to be displayed;
and 3, taking the sum of the product of the gray-scale value of at least one homochromatic data sub-pixel in the image to be displayed and the corresponding coefficient as the gray-scale value of the corresponding triangular sub-pixel in the display screen.
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| JP2019095513A (en) * | 2017-11-20 | 2019-06-20 | シナプティクス インコーポレイテッド | Display driver, display device and subpixel rendering processing method |
| CN110288676B (en) * | 2019-06-04 | 2023-05-12 | 广州小鹏汽车科技有限公司 | 3D effect construction method and device for plane image |
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